/**
 * Copyright 2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.xume.raob.annotations;

import static org.xume.raob.util.StringUtils.capitalize;
import static org.xume.raob.util.StringUtils.isNotEmpty;

import java.lang.reflect.Method;

import org.xume.raob.statements.Statement;
import org.xume.raob.statements.StatementsFactory;
import org.xume.raob.util.ReflectionUtils;

/**
 * @author Johan Siebens
 */
public class PropertyStatementsFactory implements StatementsFactory<Property> {

	private static final String SET = "set";

	private static final String WITH = "with";

	private Method method;

	public Statement[] getStatements(Object... args) {
		return new Statement[] { new Statement(method, args) };
	}

	public void initialize(Method builderMethod, Class<?> targetClass) {
		doInitialize(builderMethod, targetClass, null);
	}

	public void initialize(Property property, Method builderMethod, Class<?> targetClass) {
		doInitialize(builderMethod, targetClass, property.value());
	}

	private void doInitialize(Method builderMethod, Class<?> targetClass, String value) {
		String name = builderMethod.getName();
		String propertyName = null;

		if (isNotEmpty(value)) {
			propertyName = value;
		} else if (name.startsWith(WITH)) {
			propertyName = name.substring(WITH.length());
		} else {
			propertyName = name;
		}

		method = ReflectionUtils.findMethod(targetClass, SET + capitalize(propertyName), builderMethod.getParameterTypes());
	}

}
